Best wishes on his vet visit. I hope you find a solution to his pain.
Another option to go with allopathic veterinary care is acupuncture. It has made big differences in my old arthritic dogs and my working dogs. I checked the site where my vet was trained, and while I didn't find anyone in Augusta. I did find a listing in Washington, definitely much closer than Atlanta where we have tons. Here is the listing if your interested.
Stan Brown, DVM, CVA
TCVM Certified Veterinary Acupuncturist
Washington, GA 30673, USA
Tele: (706)678-5611
Fax: (706)678-5611
Also the reason I sent the handicapped pet links etc. was there are a couple of options to support both front and rear.
Goodluck to you and fella,
Beth and the GSD girls
Jannu SAR Dog CD RE MXP MJP CGC TC
Chandi SAR Dog CD RE NA NAP CGC TC
Grian having fun being a puppy
Tashi SAR Dog waiting at the bridge